Hairpin



Patented Feb. l2, 1924.

STATES FRANK A. WILDASON, 0F INDIANAPOLIS, INDIANA.

HAIRPIN.

Application filed August 25, 1922. Serial N10. 584,229.

To 'all wlw/nt t may concern.'

Be it known that I, FRANK A. lVIrpAsoN, a citizen of the United States,and a resident of Indianapolis, county of Marion, and State of Indiana,have invented a certain new and useful Hairpin; and T do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, in which like numeralsrefer to like parts.

This invention relates to a hair pin yprovided with an interlockingportion for preventing it from loosening its position in the hair afterbeing placed therein.

The main object of the invention is to provide a hair pin which will bereadily insertable in the hair and manually removable therefrom, butwhich has an overlapping or interlocking portion which will prevent itsfalling out or loosening. One of the features of the invention residesin the looped ends of the hair pin, so formed that the overlappingportion will be entirely spaced from the main portion at their adjoininglooped end, whereby strands of hair will not catch between them.

The full nature of the invention will be understood from theaccompanying drawings and the following description and claims.

In the drawings, Fig. 1 is a front elevation ofl the hair pin. Fig. 2 isa side elevation thereof. Fig. Sis a section taken on the line 3 3 ofFig. 1. Fig. 4; is a section taken on the line 4 4 of Fig. 1.

In the drawings there is shown a hair pin formed of wire, Celluloid,hard rubber or any suitable material, in the usual manner, having a bodyportion 10 bent near its center so as to provide two Shanks extendingsubstantially parallel to each other and of the same length. As iscustomary in hair pins of this type, the material is so tempered orformed as to have a spring action, with the bend therein so that itnormally takes the shape shown in Fig. 1. This will permit the Shanks tobe sprung away from each other while inserting or removing the pin fromthe hair.

The lower portion of the shank members, near the ends thereof, are splitand formed with a straight portion 11 in alignment with said members,the other portions 12 and 13 being drawn out and formed at an angle toeach other, as shown in Fig. 1. This formation provides a triangular endportion on the sh ank members, formed by splitting and spreading thesaine. vWhereas the base of the triangle formed thereby iscomprised ofthe portions 11 in alignment with the shank members, the sides 12 and 13of the triangles extend toward eachother so as to provide the verteXes'111 `which overlap as shown. The normal position'of the pin is suchthat said verteXes 14 are slightly overlapped and the side port-ionsbear against each other under the spring tension of the metal.

When the hair pin is inserted, the verteXes 14 and overlapping portions12 and 13 are slightly spread or twisted so that hair will passtherebetween toward the bent end of the pin, and after it is in placethe spring tension of said pin tends to bring the portions 12 and 13together so as to lock the hair in the upper portion of the pin. The pinwill then be locked in position until such time as sufficient force isapplied for withdrawing it to spring said portions away from each otherand permit the hair to pass therebetween.

The invention claimed is:

1. A hair pin having a pair of shank members and projections formed nearthe free ends thereof, said projections being returned portions oftheShanks and providing closed ends for the latter, said projections beingso arranged as to overlap and adapted to bear against each other underspring tension, when said shank members vare in normal position.

2. A hair pin having a pair of shank members and overlapping endsadapted to bear against each other-for preventing the free passage ofthe hair therebetween, said ends constituting` returned portions of theShanks and providing closed ends for the latter, said overlapping endsbearing against eac-h other when the shank members are 1n normalposition.

3. A hair pin having a pair of shank members split near the free endsthereofsaid split portions formed to overlap and to bear against eachother under the spring tension of said shank members when the latter arein normal position.

4. A hair pin provided with a pair of shank members split near the freeends thereof, one side of the split portions being substantially inalignment with the body of said members, and the inner sides thereofbeing bent to extend inwardly so as to overllO lap each other, When saidshank members are in normal position substantially as shown anddescribed.

5. A hair pin Vhaving a pair or' shank members formed from a singlepiece of Wire bent near its center, whereby said shank members Willextend substantially parallel to each other, said shank members being'split near `their freeends, one side of the split portions thereofextending in substantial alignment with the bodyof said members, and theother side of said split portions being drawn inwardly andfbent at anangle to form overlapping vertexes adapted to normally bear against`each other under the spring pressure of the shank members When saidshank members are in normal position.

6. A hair pin having a pair of shank members formed of a single piece ofWire bent near its center, said shank members being looped back so as toprovide rounded free ends and form inwardly extending portions spacedtherefrom, whereby said free ends so formed will be open, the inwardlyextending portions being bent inwardly and away from said Shanks so asto overlap each other when the shank members are in normal position,substantially as described.

ln Witness whereof, l have hereunto af- Xed my signature.

FRANK A. WILDASON.

